The first image the mark on the 9 is a bag mark. Two through Six are a die break that is common for this year. The break starts out small, then enlarging to the size it is. Seems like when the deteration of the die reaches the point where the die is still harden, it quits spreading for a while. I feel most of the die crack/chip/break progression happens after one or more die clashes. On the wheat Cents the stalks field out line touches the area and from the B & R. Making the BIE Cents and the skirted R as B mentioned.
https://www.coincommunity.com/forum...ie_Clash.jpgBut your coin is a
Memorial cent. But again I feel the die clashes do play a factor in weakening the die making cracks/chips/breaks as the die is separation deeper in the die itself with an eroding away where the crack starts rubbing together.
https://www.coincommunity.com/forum...RIAL_REV.jpgWhen looking at column # 1 you see where the outlines of the devices would collide during a die clash. Cleanings make seem to remove the clash marks for a while, but continued clashes only make the die split deeper and the die deteriates more and more. This is common for normal use of the die and the die is not usually retired till it either gets too worn or till the die breaks fall off the die, making a few
Cud coins before the operator notices that this has happened. With the out rim broke away it makes coins that are very collectible to
Cud collectors. here is a few examples.
https://www.coincommunity.com/forum...coop/CUD.jpghttps://www.coincommunity.com/forum...b_IMAGES.jpghttps://www.coincommunity.com/forum...tuckyCud.jpgSo I would say your coin is normal in the sense that it happens a lot of the breaking of the letters/numbers on dies. The last image appears to be
Machine Doubling. What to watch for a RPMs/doubled dies. This year has a lot of RPMs. Major and minor. But spotting them may be a nice find. Hope this helps.